Well, I know I am late to this topic. But let me say that I have also been called some names in my years of working the gas audits. I have been asked, "Why are you taking pictures?", "What are you doing?" and almost anything else you can think of. It usually comes from customers, but occasionally one of the employees who may have received a low score from someone before me. However, it always makes up for it when I run into someone who tells me, "It was good to see you again." So, don't think bad of everyone. There are good people out there. But after all my time in this field, I do know how you feel and you are not alone.
Take care and be safe.